引用本文:
任昌义, 张振江, 邢海平, 唐涛. 界面键接的茂金属聚乙烯/聚合型改性蒙脱土纳米复合材料的超临界二氧化碳发泡[J]. 应用化学,
2010, 27(10): 1129-1132.
doi:
10.3724/SP.J.1095.2010.90746
Citation: REN Chang-Yi, ZHANG Zhen-Jiang, XING Hai-Ping, TANG Tao. The Foaming of Interface-bonded Metallocene and Polyethylene/Polymerizable Montmoillonite Nanocomposite in Supercritical Carbon Dioxide[J]. Chinese Journal of Applied Chemistry, 2010, 27(10): 1129-1132. doi: 10.3724/SP.J.1095.2010.90746
Citation: REN Chang-Yi, ZHANG Zhen-Jiang, XING Hai-Ping, TANG Tao. The Foaming of Interface-bonded Metallocene and Polyethylene/Polymerizable Montmoillonite Nanocomposite in Supercritical Carbon Dioxide[J]. Chinese Journal of Applied Chemistry, 2010, 27(10): 1129-1132. doi: 10.3724/SP.J.1095.2010.90746
界面键接的茂金属聚乙烯/聚合型改性蒙脱土纳米复合材料的超临界二氧化碳发泡
English
The Foaming of Interface-bonded Metallocene and Polyethylene/Polymerizable Montmoillonite Nanocomposite in Supercritical Carbon Dioxide
Abstract:
The rheological behavior of interface-bonded metallocene and polyethylene/polymerizable modified montmoillonite(mPE/P-MMT) nanocomposite had been studied.It was found that there was cross-linking structure formed by PE matrix and P-MMTs;and mPE/P-MMT nanocomposite had higher melting strength compared with mPE matrix and conventional metallocene bonded polyethylene/dodecylammonium modified montmoillonite(mPE/12-MMT) composite.The melting strength of mPE/P-MMT at 190℃ was 12.0 cN.Supercritical carbon dioxide was used as foaming agent for foaming the samples.According to the results,higher volume expansion ratio,as much as 14.7,was obtained for the mPE/P-MMT sample compared with others.The optimum temperature for the foaming process on mPE/P-MMT nanocomposite was 142℃.
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Key words:
- metallocene catalyzed polyethylene
- / nanocomposite
- / foam
- / rheology
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